Added Jenkinsfile and Dockerfile

Dockerfile

@@ -0,0 +1,18 @@
+FROM node:16-alpine
+
+WORKDIR /app
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+
+COPY ./.next /app/.next
+COPY ./public /app/public
+COPY ./res /app/res
+COPY ./node_modules /app/node_modules
+COPY ./next.config.js /app/next.config.js
+COPY ./package.json /app/package.json
+COPY ./yarn.lock /app/yarn.lock
+
+RUN npm install
+
+ENTRYPOINT npm start
+EXPOSE 3000